Rio Tinto has apologised for dropping a remarkably radioactive capsule that fell off a truck on a 1,400-kilometre extend of desert freeway in Western Australia, as the mining company sought to restrict the destruction from the incident. The miner and Australian authorities are scrambling to uncover the missing component from a sensor used in mining, which actions just 6mm by 8mm and was missing on its way from a website in the Pilbara location to a depot in the state money of Perth. The silver capsule is made up of a little sum of caesium-137, and is dangerously radioactive. An hour of publicity from about a metre absent is the…